A bit of the bizarre for your collection. The body of this trolley insulator is a composition with brass covering the dome. In raised lettering on the dome is PATENTED over JUNE : 5 : 94. I'm not sure of the rarity but this is the first time I've come across this particular style insulator with embossing. As the antique dealer would say "there's a whole lot of patina". One tab is broken off and one is bent down. I'll post a second photo showing the embossing. I'm asking $45.00 plus actual shipping cost. Check, money order or PayPal, no fee.